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Disclosure to Promote the Right To Information 

Whereas the Parliament of India has set out to provide a practical regime of right to 
information for citizens to secure access to information under the control of public authorities, 
in order to promote transparency and accountability in the working of every public authority, 
and whereas the attached publication of the Bureau of Indian Standards is of particular interest 
to the public, particularly disadvantaged communities and those engaged in the pursuit of 
education and knowledge, the attached public safety standard is made available to promote the 
timely dissemination of this information in an accurate manner to the public. 

Mazdoor Kisan Shakti Sangathan 
"The Right to Information, The Right to Live'' 

IS 9457 (2005) : Safety Colours and Safety Signs — Code of 
Practice (First Revision). ICS 01.080.10 

Jawaharlal Nehru 
'Step Out From the Old to the New" 

aj^&vi iJii^s:y>K^ isb^^ni^seg 

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Satyanarayan Gangaram Pitroda 
Invent a New India Using Knowledge 

Bhartrhari — Nitisatakam 
''Knowledge is such a treasure which cannot be stolen" 



IS 9457: 2005 

Indian Standard 


( First Revision ) 

ICS 01.080.10 

Apologies for the low quality of this document. It is as received 
from BIS. We suspect it was a colour document and scanned in black 
and white. Public .Resource . Org. 



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© BIS 2005 


NEW DELHI 110002 

December 2005 Price Group 6 

Occupational Safety and Health and Chemical Hazards Sectional Committee, CHD 8 


Ihis Indian Standard (First Revision) was adopted by the Bureau of Indian Standards, after the draft finalized by 
the Occupational Safety and Health and Chemical Hazards Sectional Committee had been approved by the 
Chemical Division Council. 

This standard was first published in 1980 to unify widely different Codes of practice hoping that those involved 
in the preparation of new or amended schemes for safety colours and safety signs will base their schemes on the 
provisions of this standard. 

This standard also fulfills the need to standardize a system of providing safety information which does not 
require the use of words. The need arises because of the increase in national and international trade and travel 
and the growth of work forces lacking a common language. Further, this standard would help in education which 
is an essential part of disseminating safety information. It is desirable to standardize these systems as lack of 
standardization may perhaps lead to confusion and even accidents, 

Over the years, throughout the world, Code of practice for safety colours and safety signs have been further 
developed to draw attention rapidly to hazardous situations and objects. This revision is based on International 
Standard IvSO 3864-1 'Safety colours and safety signs -^ Part 1 : Design principles for safety signs on workplaces 
and in public areas'. In the preparation of this standard assistance has also been derived from the following 
International Standards: 

BS : 5378 - Part 1 : 1980 Safety signs and colours — Part 1 : Specification for colour and design 
BS : 5378 - Part 2 : 1980 Safety signs and colours — Part 2 : Specification for colorimetric and 

photometric properties of materials 

The composition of the Committee responsible for the formulation of this standard is given at Annex B. 

For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, 
observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with 
IS 2 : I960 'Rules for rounding off numerical values (revised)'. The number of significant places retained in the 
rounded off value should be the same as that of the specified value in this standard. 

IS 9457 : 2005 

Indian Standard 


( First Revision ) 


This standard prescribes the safety identification 
colours and design principles for safety signs to be used 
in workplaces and in public areas for the purpose of 
accident prevention, fire protection, health hazard 
information and emergency evacuation. 

This standard is applicable to workplaces, all locations 
and all sectors where safety-related questions may be 
posed. However, it is not applicable to the signalling 
used for guiding rail, road, river, maritime and air 
IralTic and generally speaking, to those sectors subject 
to regulations which may differ, 


The standard given below contains provisions, which 
through reference in this text, constitute provisions of 
Ihis standard. At the time of publication, the editions 
indicated was valid. All standards are subject to 
revisions and parties to agreement based on this 
standard is encouraged to investigate the possibility 
of applying the most recent editions of the standard 
indicated below: 

IS No. Title 

5 : 2004 Colours for ready mixed paints and 

enamels (fifth revision) 


For the purpose of this standard, the following terms 
and definitions apply. 

3.1 Coefficient of Retroreflection, R' — Plane retro- 
reflecting surface quotient of the luminous intensity 
(/) of a plane retroreflecting material in the direction 
of observation divided by the product of the 
illuminance (E^) of the retroreflecting surface on a 
plane perpendicular to the direction of the incident light 
and its area (A). 


R' = 


3.2 Combined Materials — Materials which combine 
the optical characteristics of photoluminescent and 
retroreflective materials. 

3.3 Critical Detail — Element of a graphical symbol 

without which the graphical symbol cannot be 

3.4 Fluorescence — Photoluminesccnce in which the 
emitted optical radiation results from direct transitions 
from the photo-excited energy level to a lower level, 
these transitions taking place generally within 10 ns 
after the excitation. 

3.5 Luminance Contrast — Quotient of the luminance 
of the contrast colour L^ divided by the luminance of 
the safety colour L^ where Lj is greater thanL^- 



3.6 Luminance Factor — Ratio of the luminance of 
the surface element in a given direction to that of a 
perfect reflecting or transmitting diffuser identically 

3.7 Luminescence — Emission, by atoms, molecules 
or ions in a material of optical radiation which for 
certain wavelengths or regions of the spectrum is in 
excess of the radiation due to thermal emission from 
that material at the same temperature, as a result of 
these particles being excited by energy other than 
thermal agitation. 

3.8 Ordinary Materials — Materials which are 
neither retroreflecting nor luminescent. 

3.9 Retroflecting Materials — Materials which 
reflect radiation in a direction close to the opposite of 
the direction from which it came. 

3.10 Phosphorescence — Photoluminescence delayed 
by storage of energy in an intermediate energy level. 

3.11 Photoluminescence — Luminescence caused by 
absorption of optical radiation. 

3.12 Safety Colour — Colour of special properties 
to which a safety meaning is attributed. 

3.13 Safety Marking — Marking which adopts the 
use of safety colours and/or safety contrast colours to 
convey a safety message or render an object or location 

3.14 Safety Sign — Sign which gives a general safety 
message, obtained by a combination of a colour and 

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IS 9457 : 2005 




Occupational Safety and Health and Chemical Haziirds Sectional Committee, CHD 8 

Natiofiul Safety Council, Navi Miimbai 
Contederation at Indian Industries, New Delhi 

Indinn Chemical Manufacturers Association, Mumbai 

Airport Authority of India, New Delhi 

Alomjc Energy Regulatory Board, Mumbai 
Bhabha Atomic Research Centre, Mumbai 

Central Boiler Board, New Delhi 

Central Leather Research Institute, Chennai 

Cciurul Minini; Research Intititutc, Dhaiibad 

Centra J Warehousing Corporation, New Delhi 

Century Rayon, Thane 

Department of Explosives, Nagpur 
Department of Space (ISRO), Sriharikota 

Dcptartrnent of Industrial Policy and Promotion, New Delhi 

Direclorale General Factory Advice Service & Labour Institute, 

Directorate General of Health Services, New Delhi 

Directorate General of Mines Safety, Dhanbad 

Direclorale of Industrial Safety and Health, Mumbai 
Directorate of Standardization, Ministry of Defence, New Delhi 

Bmployccs Slate Insurance Corporation, New Delhi 
Excel Industries Ltd. Mumbai 
Hindustan Aeronautics Ltd, Bangalore 
Hindustan Lever Ltd, Mumbai 

Indian Institute of Chemical Technology, Hyderabad 
Indian Petrochemical Corporation Ltd, Vadodara 

Indian Toxicology Research Centre, Lucknow 
Ministry of Defence (DGQA), Kanpur 

Ministry of Defence (R&D), Kanpur 

Ministry of Environment & Forest, New Delhi 
National Institute of Occupational Health. Ahmedabad 

Shr[ K. C. Gupfa (Chairman) 

Shr] A. K. Ghose 

Shri a NIK AjMF.RA (Alternate) 

Shri V. N. Das 

Shri A. A. Panjwani (Alterfiate) 

Shri A. N. Khkra 

SiiRi M. Durairajan (Alternate) 

Shr[ p. K. Ghosh 

Dr B. N. RATHt 

Shr] S. Soundararajan (Alternate) 


Shri G. Swaminathan 
Shri J. K. Pandhy 


SuRi H. G. Uttamchandani 

Shri S. K. Mishra (Alternate) 


Shri P. N. Sankaran 

Shri V. K. Srivastava (Alternate) 

Dr D. R. Chawla 

Dr A, K. Majumdar 

Shrf S. P. Rana (Alternate) 



Dt-PiJTY Director of Mines Safety (HQ) [Alternate) 

Shri V. L. Joshi 

Shri P. S. Ahuja 

Lt-Col Tejindkr Singh (Alternate) 


Shri Vipin B. Doshi 

Shri S. V. Suresh 

Shri B. B. Dave 

Shri Adfiya Jhavar (Alternate) 

Shri S. Venkateswara Rao 

Shri P. Vijayraghavan 

Shri M. R. Patel (Alternate) 

Dr Virkndra Mfshra 

Dr V. P. Sharma (Alternate) 
Shri M. S. Sultania 

Shr] Sujit Ghosh (Alternate) 

Dr a. K. Saxena 

Dr Rajindra Singh (Alternate) 


Dr V. Krishna Murthy 

Dr a. K. Mukherjee {Alternate) 



NtUional Sal'cty Council, Navi Mumbai 

NOCIL, Mumbai 

Office ol the Development Commissioner (SSI), New Delhi 

Oil Industry Safety DTE (Ministry of Petroleum & Natural Gas), 
New Delhi 

Ordnance Factory EJoard, Kolkata 

Safety Appliances Manufacturers Association, Mumbai 

SI EL Chemical Complex, New Delhi 

Southern Petrochemical Inds. Corporation Ltd, Chennai 

Standing Fire Advisory Council, Ministry of Home Affairs, 
New Delhi 

Steel Authority of India Ltd, Ranchi 

Tata AIG Risk Management Services Ltd. Mumbai 

BIS Directorate General 

IS 9457 : 2005 


Dr A. K. MuKiiERJEE (Alternate) 

Sum P. M. Rao 

Shri D. Biswas (Alternate) 

Dr B. V. Bapat 

Shri V. R. Narla (Alternate) 

Shri S. R. Singh 

Dr J. S. Rekht (Alternate) 

Shrf S. K. Chakrabarti 

Shri V. K. Srivastava (Alternate) 

Dr D. S, S. Gangvjlv 

Shri R. Srinivasan (Alternate) 

Shri M. Kant 

Shr! Kirit Maru (Alternate) 

Shri Rajeev Marwah 

Shri Navdeep Singh Birdie {Alternate) 

Shri V. Jayaraman 

Shri S. Muruganandam (Alternate) 

Shri Cm Frakash 

Shri D. K. Shami (Alternate) 

Shri V. K. Jain 

Shri Urmish D. Shah 

Dr U. C, Srivastava, Director and Head (CHD) 
[Representing Director General (Ex-officio Member)] 

Member Secretary 

Shri N. K. Pai. 

Director (CHD), BIS 


Bureau of Indian Standards 

BIS is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promote 
harmonious development of the activities of standardization, marking and quality certification of goods 
and attending to connected matters in the country. 


BIS has the copyright of all its publications. No part of these publications may be reproduced in any form 
without the prior permission in writing of BIS. This does not preclude the free use, in the course of 
implementing the standard, of necessary details, such as symbols and sizes, type or grade designations. 
Enquiries relating to copyright be addressed to the Director (Publications), BIS, 

Review of Indian Standards 

Amendments are issued to standards as the need arises on the basis of comments. Standards are also 
reviewed periodically; a standard along with amendments is reaffirmed when such review indicates that 
no changes are needed; if the review indicates that changes are needed, it is taken up for revision. 
Users of Indian Standards should ascertain that they are in possession of the latest amendments or 
edition by referring to the latest issue of 'BIS Catalogue' and 'Standards : Monthly Additions'. 

This Indian Standard has been developed from Doc : No. CHD 8 (1189). 

Amendments Issued Since Publication 

Amend No. 

Date of Issue 

Text Affected 


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2323 7617 
2323 38 41 

2337 84 99, 2337 85 61 
2337 86 26, 2337 91 20 

{260 38 43 
260 92 85 

2254 12 16,2254 14 42 
2254 25 19.2254 23 15 

2832 92 95, 2832 78 58 
2832 78 91 , 2832 78 92 


Printed at: Sita Fine Arts (P) Ltd., New Delhi